ex 



DIV. IV. — RADIATA. 



ORDER I. — Pedicellata. 



Genus. 



Asterias . 



i: 



Encrinus 



1. 



2. 

 3. 



4. 

 5. 

 6. 



7. 



8. 

 9. 



Vio. 



1. 



2. 



Echinus , 



Subgenus. 



Asterias, prop. Lam. 

 Ophiura 



Gorgonocephala, \ 



Leach J 



Alecto, Leach. 

 Encrinus, prop. \ 



& existing j" 



Apiocrinites 



Encrinites 



Pentacrinites 



Platycrinites 



Poteriocrinites 



Cyathocrinites 



Actinocrinites 



Rhodocrinites 



Eugeniacrinites 



Echinus, prop 



Echinone, Phelsum. 



Example of Species. 



As. discoidea, Lam. 

 Ast. nigra, Miill. 



As. caput Medusae. 



As. multiradiata, Leach. 

 Pentacrinus Europseus, 

 Thomson' 



All fossil. 



3. Nucleolites, Lin. 



Holothuria. 



4. 

 5. 

 C. 

 7. 

 8. 

 9. 

 10. 



n. 



12. 

 Vl3. 



Galerites, Lam. . . 

 Scutella, Lam. . . 



Rotula, Kl 



Cassidulus, Lam. 

 Ananchites, Lam. 

 Clypeaster, Lain. 

 Fibularia, Lam. . . 

 Spatangus, Kl, 

 Brissoi'des, KL . . 

 Brissus, Kl. «... 



E. mamillatus, L. 



,E. cyclostomus, Miill. 



Spatangus depressus, fossil 



Leslie. 

 , Ech. vulgaris, fossil, L. 



E. auritus, Scl. 

 , E. decadactylus. 

 , Cass. Caribseorun, Lam. 

 , E. ovatus, L. fossil. 

 , E. rosaceus, Kl. 



E. nucleus, Kl. 



, E. teres, Seb. 



, E. purpureus, Miill. 



. Hoi. plantapus, L. 



ORDER II. — Apedicellata. 



Genus. 



Molpadia . . 

 Myiiias , . . . 

 Priapulus . . 

 Lithodermes 

 Siponculus . . 

 Bonellia. . . . 



Thalassema 



Subgenus. Example of Species. 



Mol. holothuroides, Cuv. 



M. cyanea, Cuv. 



Hoi. priapulus, L. 



Lith. cuneus, Cuv. 



Sip. edulis, Cuv. 



....,, Bon. viridis, Rol. 



L Thalassema, prop..T. Neptuni, Gertner. 



2. Echiurus Lumbricus echiurus, Gmel, 



3. Sternapsis, Otto ■ . . Thalassima scutatum, Ranzan. 



